Ok, I've narrowed down my travel system to quinny; mainly because I think they are built well and also because I already have a Zapp and a Pebble Maxi Cosi car seat.
There is no doubt the Moodd is the less 'niggly' pushchair of the 2 and to me is practically flawless, but it's RRP is £600 ish.
A Buzz has slightly more niggles but I can pick up a used, less than 2 year old one for £100 ish.
Is the lack of niggles really worth the extra £500? My DP thinks yes
I think no! 
We could afford the Moodd as we are financially in a good position, but I like to get good value for money!